Why it works: Milk and butter are a kitchen classic. They rank in the top 7% of all ingredient pairs, and cooks put them together in 81,283 recipes. Both carry (z)-4-heptenal, which smells biscuit, cream. The science ↓
Asparagus Soup
Ingredients
Directions
Cook the asparagus
Place the asparagus in a pot and cover with cold water. Cook until very tender.
Cut off a few tips of asparagus to serve in the soup.
Mash the remaining asparagus with the cooking water through a strainer.
Make the soup
Scald the milk in a separate pot.
Melt the butter in a pan, then stir in the flour and seasonings.
Combine the butter mixture with the scalded milk.
Add the asparagus pulp and tips to the milk mixture. Serve hot.
Transcribed from a scanned cookbook and modernised for today's kitchens. Where the book gave no heat or time, or said "a moderate oven", the temperatures and times here may be modern equivalents rather than the book's own figures.
Photo for illustrative purposes only · Contact us to use it
Explore the science
The flavor team
The pairs that carry this dish. Each one is judged two ways: how much their aromas overlap, and how often cooks already put them together.
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Milk + buttertop 7% of all pairsSmell alikemoderateCooked together81,283 recipes
Shared aroma: (z)-4-heptenal (biscuit, cream).
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Asparagus + peppertop 10% of all pairsSmell alikemoderateCooked together1,968 recipes
Shared aroma: 2-isopropyl-3-methoxypyrazine (earthy, pea).
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Butter + flourtop 12% of all pairsSmell alikelowCooked together124,287 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Asparagus + flourtop 12% of all pairsSmell alikemoderateCooked together936 recipes
Shared aroma: isobutyraldehyde (malty, green).
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Milk + flourtop 14% of all pairsSmell alikelowCooked together78,219 recipes
Shared aroma: isobutyraldehyde (malty, green).
Butter and flour barely smell alike, yet cooks put them together in 124,287 recipes: they work on texture and structure more than aroma.
Ranks compare each pair with 20,000 random ingredient pairs on CompKitchen. How we score pairs
What each ingredient does
- Milk
- Forms the creamy body of the soup once scalded and combined.
- Asparagus
- Provides the main flavour and, once mashed, the thick texture of the soup.
- Butter
- Adds richness and fat, and forms the base for the thickened roux.
- Flour
- Thickens the soup when cooked with the butter before the milk is added.
The step that matters
Stirring the flour into the melted butter. Cooking the flour in fat helps prevent lumps and gives a smooth, evenly thickened base. Adding the milk gradually while stirring keeps the soup silky rather than clumpy.
Swap the asparagus
How well each one fits the dish's main ingredients (milk, butter, flour, pepper):
- Potatofits better
- Capsicumfits better
- Chivefits about as well
- Asparagusthe original
Fit is the average pairing score against milk, butter, flour, pepper. Candidates are from the same food group and used in at least 100 recipes.
“What each ingredient does” and “The step that matters” were written by Claude from this recipe’s own method and reviewed in samples by CompKitchen.
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